The light at end of tunnel... :-) Rated 5 out of 5 stars

With AIOS addon installed when you download a file the Firefox 4 GUI became inactive and remain in this way also when the download is finish.No problem with QSQ theme.In addition I suggest to make the Bookmarks Toolbar with the same height of QSQ theme because with Forecastfox addon inside, during weather data update the toolbar and web page have a small movement.

This review is for a previous version of the add-on (2.1.3).  This user has other reviews of this add-on.